When you say "everything online" do you mean every untrusted source? Surely the genie is out of the bottle on communication over the web. That local source will have a website. Because of that I feel like we'll always just have to be vigilant, just like we always should have been. After all, local scams still exist. Real humans are behind the bots.
Yes, but those humans are usually anonymous and on the other side of the planet which makes them feel safe. And that allows them to be evil without repercussions.
Back in the days, I went to LAN parties. If someone spotted a cheater, they would gang up with their friends and literally throw the offender out of the building. That was a pretty reliable deterrent. But now with all games being played online, cheating is rampant.
Similarly, imagine if those Indian call centers that scam old ladies out of their life savings were located just a quick drive away from their victims' families. I'm pretty sure they would have enough painful family visits such that nobody would want to work there.
Accordingly, I'm pretty sure the local expert would have strong incentives to behave better than an anonymous online expert would.
I was merely trying to argue that scams within a local community would be less severe than scams between strangers, because they are easier to punish and/or deter.